#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
#define pb push_back
#define mp make_pair
#define rep(i,n) for(int i=0;i<(n);++i)
const int mod=1000000007;

bool dec(ll a){
	while(a>0){
		if(a%10==3) return true;
		a/=10;
	}
	return false;
}

int main(){
	cin.tie(0);
	ios::sync_with_stdio(false);
	ll a,b;cin >> a >> b;
	for(ll i=a;i<=b;++i){
		if(i%3==0 || dec(i)) cout << i << endl;
	}
}